STATISTICAL CODING OF COEFFICIENTS USING THE UNITED CONTEXT MODEL

摘要

A video encoding method, comprising: maintaining an integrated context model shared by a first transform unit having a first size and a second transform unit having a second size, wherein the first size and second size are different and each of said transform blocks contains residual data block of the video block; context selection for coefficients associated with one of the first transform block and the second transform block, according to the combined context model; statistical encoding of each of the coefficients of said one of the transform blocks using statistical encoding other than variable length encoding based on the selected contexts. 2. The method of claim 1, wherein the combined context model comprises a combined context model of the significance map, further comprising: selecting contexts for components of the significance map associated with one of the first transform block having a first size and the second transform block having a second size, according to integrated context model; Statistical coding of the components of the significance map associated with the aforementioned one of the transformation blocks based on the selected contexts. 3. The method of claim 1, wherein selecting contexts for each of the coefficients according to the combined context model comprises: assigning a context in the combined context model to a given one of the coefficients based on values of previously encoded neighboring coefficients of said one of the transform blocks; iop��